<template>
  <el-upload
    class="avatar-uploader"
    action=""
    :show-file-list="false"
    :before-upload="beforeAvatarUpload"
    :http-request="onHttpRequest"
  >
    <!-- (自动上传)action是上传地址 人资项目不需要 人资项目(手动上传)  -->
    <!-- show-file-list不展示列表 -->
    <img v-if="value" :src="value" class="avatar">

    <i v-else class="el-icon-plus avatar-uploader-icon" style="border: 1px dashed #d9d9d9" />
  </el-upload>
</template>

<script>
import COS from 'cos-js-sdk-v5'
const cos = new COS({
  SecretId: 'AKIDQirsiLqLP6e3INK8sPjtunTyIqCMK6d1',
  SecretKey: 'GOKDtOhw3CE7sThlniWJDyZ2MWnu0HVi'
})
export default {
  props: {
    value: {
      type: String,
      default: ''
    }
  },
  methods: {
    // 检查函数 判断文件的类型还有大小 return  true(继续上传)/false(停止上传)
    beforeAvatarUpload(file) {
      // jpeg png gif bmp

      const isJPG = ['image/jpeg', 'image/png', 'image/gif', 'image/bmp'].includes(file.type)
      const isLt2M = file.size / 1024 / 1024 < 5 // 5M

      if (!isJPG) {
        this.$message.error('上传头像图片只能是 JPG PNG GIF BMP 格式!')
      }
      if (!isLt2M) {
        this.$message.error('上传头像图片大小不能超过 5MB!')
      }
      return isJPG && isLt2M
    },
    onHttpRequest(parmas) {
      if (parmas.file) {
        cos.uploadFile({
          Bucket: 'youngscholar-1304364331',
          Region: 'ap-nanjing',
          Key: parmas.file.name,
          Body: parmas.file
        }, (err, data) => {
          if (err) {
            console.log('上传失败', err)
          } else {
            if (data.statusCode === 200) {
              const fullUrl = 'https://' + data.Location
              console.log(fullUrl)
              this.$emit('input', fullUrl)
            }
          }
        })
      }
    }
  }
}
</script>

<style scoped lang="scss">
  ::v-deep .avatar-uploader .el-upload {
    border: 1px dashed #0000;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }
  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }
  .avatar {
    width: 178px;
    height: 178px;
    display: block;
  }
</style>
